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1) You cool a 130.0g slug of red-hot iron (temperature 745 ?C) by dropping it into an insulated cup of negligible mass containing 70.0g of water at 20.0 ?C. Assume no heat exchange with the surroundings.
Part A What is the final temperature of the water?
Part B What is the final mass of the iron and the remaining water?
A cart for hauling ore out of a gold mine has a mass of 425 kg, including its load. Calculate the work done on the cart during the process by friction
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Consider a hollow circular cylinder. Use Gauss's law to show that the field inside the pipe is zero. Also show that the field outside is the same as if the charge were all on the axis.
If a material increases its length from 130 m to 132.60 m when its temperature is rasied 155 degrees C, what is its coefficient of linear expansion
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q1. a block with a mass of 20 g is pulled at a constant speed across a horizontal tabletop with a spring scale. the
An ideal transformer has 890 turns in its primary coil and 150 turns in its secondary coil. What is the output voltage of the secondary coil
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q1. suppose the gravitational force between two massive spheres is 100 n. if the distance between the spheres is
An electron experiences a magnetic force of magnitude 4.20 10-15 N when moving at an angle of 45.0° with respect to a magnetic field of magnitude 3.90 10-3 T. Find the speed of the electron
An electron is in the ground state of an infinite square well. The energy of the ground state is E1 = 1.11 eV. What is the width of the square well
A very massive object, almost infinitely massive, moving with a velocity V1=100m/s hits a very light object ("massless") at rest. What is the final velocity of the very light object
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